unrar

unrar.sh

for <var> in <list>
do
   command $<var>;
done

# to unrar all rar files
for f in *.rar;do unrar e "$f";rm "$f";done

for f in *.001;do 7z e "$f";done

# to unzip all zip files
for f in *.zip;do unzip "$f";done
for f in *.txt;do mv "$f" /myfolder/;done